A single-vehicle crash Saturday night on Interstate 84 west of Baker City killed a woman and seriously injured three people, the Oregon State Police said.

A 2010 Ford F350 pickup was pulling a camper trailer eastbound near milepost 294 in Baker County when it went into the median and rolled, said Sgt. Kyle Hove.

Police haven't yet identified the occupants of the truck being driven by a 30-year-old man from Blackfoot, Idaho. He and a 61-year-old man, also from Blackfoot, were taken to St. Alphonsus Regional Medical Center in Boise.

A 23-year-old man from Pocatello, Idaho, and 60-year old woman from Blackfoot were also taken to St. Alphonsus. The woman was later pronounced dead.